Chauvin Arnoux MA 400D-1000 Bedienungsanleitung Seite 20

2. CURRENT MEASUREMENT
2.1. MEASUREMENT PRINCIPLE
The flexible sensor is based on the Rogowski coil.
It combines:
■ very good linearity with no saturation effect (and so no
heating);
■ light weight (no magnetic circuit).
2.2. USE
2.2.1. CONNECTION
First of all, use the appropriate means of protection.
■ Press the yellow opening device to open the flexible coil.

■ Open it, then place it round the conductor through which
the current to be measured flows (only one conductor in
the sensor).
■ Close the coil.
In order to optimize measurement quality, it is best to centre
the conductor in the coil and to make the shape of the coil
as nearly circular as possible.
■ Press the
lights.
2.2.2. MEASUREMENT
Read the measurement on the display unit. The current is
given in Arms.
key to switch the device on. The display unit
A
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